integral of 1/(x^4+3*x^2+1) fails



Barton Willis wrote:
> -----maxima-bounces at math.utexas.edu wrote: -----
> 
>> Hello all, Maxima fails to evaluate integral of 1/(x^4+3*x^2+1) .
>> Should this be reported as bug?
> 
> Yes, please do. You might try to find similar bugs to see if this bug
> has already been reported.
> 
 > Barton

Many thanks for all answers. I think that this bug is related to the bug
[ 1913067 ] Cannot integrate 1/(1+x^n)
http://sourceforge.net/tracker/index.php?func=detail&aid=1913067&group_id=4933&atid=104933

I added the comment to the bug 1913067 and didn't start new bugreport.

Robert Marik